Garg A, Samadi F, Jaiswal J N, Saha S
Department of Pedodontics and Preventive Dentistry, Sardar Patel Post Graduate Institute of Dental and Medical Sciences, Lucknow, Uttar Pradesh, India.
J Indian Soc Pedod Prev Dent. 2014 Apr-Jun;32(2):111-6. doi: 10.4103/0970-4388.130783.
To compare the clinical efficacy of two space maintainers namely, conventional band and loop and Fiber Reinforced Composite Resin (FRCR) space maintainers.
Thirty healthy children, aged 5 to 8 years were selected having at least two deciduous molars in different quadrants indicated for extraction or lost previously. FRCR space maintainer was placed in one quadrant and in the other quadrant band and loop space maintainer was cemented. All the patients were recalled at 1 st, 3 rd, and 6 th months for evaluation of both types of space maintainer. Patient acceptability, time taken, and clinical efficacy was recorded.
The observations thus obtained were subjected to statistical analysis using Chi- square test and Mann-Whitney U test.
Patient acceptability was greater in Group I (FRCR) in comparison to Group II (band and loop space maintainer). The time taken by Group I was significantly lower as compared to that of Group II. In Group I, debonding of enamel, composite was the most common complication leading to failure followed by debonding of fiber composite. In Group II, cement loss was the most common complication leading to failure followed by slippage of band and fracture of loop. The success rates of Groups I and Group II weares 63.3% and 36.7%, respectively.
The study concluded that FRCRFiber Reinforced Composite Resin (Ribbond) space maintainers can be considered as viable alternative to the conventional band and loop space maintainers.
比较两种间隙保持器,即传统带环式间隙保持器和纤维增强复合树脂(FRCR)间隙保持器的临床疗效。
选取30名5至8岁的健康儿童,这些儿童在不同象限至少有两颗乳牙需要拔除或已缺失。在一个象限放置FRCR间隙保持器,在另一个象限粘结带环式间隙保持器。在第1、3和6个月对所有患者进行回访,以评估两种间隙保持器。记录患者的可接受性、放置所需时间和临床疗效。
对所获得的观察结果采用卡方检验和曼-惠特尼U检验进行统计分析。
与第二组(带环式间隙保持器)相比,第一组(FRCR)患者的可接受性更高。第一组放置间隙保持器所需时间明显低于第二组。在第一组中,釉质与复合材料脱粘是导致失败的最常见并发症,其次是纤维复合材料脱粘。在第二组中,粘结剂脱落是导致失败的最常见并发症,其次是带环滑脱和带环断裂。第一组和第二组的成功率分别为63.3%和36.7%。
该研究得出结论,纤维增强复合树脂(Ribbond)间隙保持器可被视为传统带环式间隙保持器的可行替代方案。